[UPDATE] [high] FreeRDP: Multiple vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities allow an attacker to execute arbitrary program code and carry out a denial of service attack.

Who is affected

All deployments of FreeRDP are affected.

Urgency

Remediation is high urgency due to the high severity and potential for exploitation.

Action

Apply the latest patches for FreeRDP immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-08-12

Exploitation

Not in CISA KEV at last sync

Language

Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0514

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-269650.59% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-269550.54% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-259550.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-259540.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-259530.59% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-259520.60% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-259420.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-269860.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-259410.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-259590.57% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all EPSS-scored CVEs.

Referenced CVEs

Recent advisories for FreeRDP

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• high[NEW] [high] FreeRDP: Multiple vulnerabilitiescert-bund · 2026-08-24
• medium[NEW] [medium] FreeRDP: Multiple vulnerabilitiescert-bund · 2026-08-24
• high[UPDATE] [high] FreeRDP: Multiple vulnerabilitiescert-bund · 2026-08-20
• unknownCVE-2026-63652: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, rdpsnd_serve…nvd · 2026-08-19
• unknownCVE-2026-63633: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, freerdp_dsp_…nvd · 2026-08-19
• mediumCVE-2026-63117: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, an authentic…nvd · 2026-08-19

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